Primary fan with dustproof structure

Abstract

The utility model discloses a primary air fan with a dustproof structure. The primary air fan comprises an air inducing bin and a connecting mechanism. The front end of the air inducing bin is provided with an air inlet pipe, the front end of the outer surface of the air inlet pipe is movably sleeved with a mounting cylinder, and the front end of the mounting cylinder is fixedly connected with two filter screens; the connecting mechanism comprises supports, adjusting seats, L-shaped grooves and L-shaped plates, the supports are evenly and fixedly connected to the middle of the outer surface of the air inlet pipe, the adjusting seats are rotatably connected to the interiors of the supports, the L-shaped plates are arranged at the front ends of the adjusting seats, the L-shaped grooves are evenly formed in the rear end of the mounting cylinder, and the L-shaped plates and the longitudinally adjacent L-shaped grooves are installed in a matched mode; and the connecting mechanism further comprises supporting columns and sliding grooves, the supporting columns are fixedly connected to the front end of the adjusting seat, the sliding grooves are formed in the L-shaped plate, according to the primary air fan with the dustproof structure, rapid and stable installation of the filter screen can be achieved, and the convenience degree of replacement and cleaning of the filter screen is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a primary fan with a dustproof structure. Background Art

[0002] A primary fan with a dust-proof structure is a fan with a dust-proof structure added to it to prevent dust, impurities and other pollutants from entering the fan, thereby ensuring the cleanliness of the air sent to the furnace or system. This type of fan is usually used in combustion systems such as layer-fired furnaces and pulverized coal furnaces, as well as industrial systems that require clean air.

[0003] Some existing primary fans with dust-proof structures use bolt connections to install the filter. There are some problems with this type of traditional primary fan with dust-proof structure. For example, the installation and disassembly process of the dust-proof unit is relatively cumbersome through the bolt connection, which limits the convenience of installing the filter. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a primary fan with a dust-proof structure, which can realize the rapid and stable installation of the filter screen, greatly improve the convenience of replacing and cleaning the filter screen, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a primary fan with a dustproof structure, comprising an induced draft bin and a connecting mechanism;

[0006] Air induced bin: An air inlet pipe is provided at its front end, a mounting tube is movably sleeved on the front end of the outer surface of the air inlet pipe, and two filters are fixedly connected to the front end of the mounting tube;

[0007] Connecting mechanism: It includes a support, an adjustment seat, an L-shaped groove and an L-shaped plate. The support is evenly and fixedly connected to the middle part of the outer surface of the air inlet pipe. The inside of the support is rotatably connected to the adjustment seat. The front end of the adjustment seat is provided with an L-shaped plate. The L-shaped groove is evenly arranged at the rear end of the installation cylinder. The L-shaped plates are installed in conjunction with the longitudinally adjacent L-shaped grooves, which can realize the rapid and stable installation of the filter screen, greatly improving the convenience of replacing and cleaning the filter screen.

[0008] Furthermore, the connecting mechanism also includes pillars and slides, the pillars are fixedly connected to the front end of the adjustment seat, the slides are arranged inside the L-shaped plate, and the slides are slidably connected to the longitudinally adjacent pillars to provide guidance for the movement of the L-shaped plate.

[0009] Furthermore, the connecting mechanism also includes springs, which are fixedly connected between the L-shaped plate and the longitudinally adjacent adjustment seats. The springs are movably sleeved on the outer surfaces of the longitudinally adjacent pillars to provide driving force for the connection between the mounting tube and the intake pipe.

[0010] Furthermore, the rear ends of the transverse grooves of the L-shaped grooves are provided with bayonets, and the front ends of the transverse plates of the L-shaped plates are fixedly connected with card plates, which are engaged with the longitudinally adjacent bayonets to improve the stability of the connection between the L-shaped grooves and the L-shaped plates.

[0011] Furthermore, a control switch is provided on the left side of the induced draft bin, and an input end of the control switch is electrically connected to an external power supply to control the motor.

[0012] Furthermore, the interior of the induced draft bin is rotatably connected to a rotating shaft, the middle of the rotating shaft is fixedly connected to a rotating drum, the outer surface of the rotating drum is fixedly connected to evenly distributed blades, and a motor is provided at the rear end of the induced draft bin, and the input end of the motor is electrically connected to the output end of the control switch to realize the induced draft operation.

[0013] Furthermore, an air outlet duct is provided at the left end of the induced draft bin, and evenly distributed connection holes are provided at the left end of the air outlet duct. The lower end of the induced draft bin is fixedly connected to a bracket, and evenly distributed mounting holes are provided at the front and rear ends of the bracket to facilitate the installation of a primary fan.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the primary fan with a dustproof structure has the following advantages:

[0015] The L-shaped plates are inserted into the corresponding L-shaped grooves, and the spring force realizes a stable connection between the card plate and the corresponding bayonet, thereby realizing a quick and stable installation of the mounting tube and the air inlet duct, replacing the bolts to install the filter, simplifying the installation and removal process of the filter, and greatly improving the convenience of replacing and cleaning the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the interior of the utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A of the present invention.

[0019] In the figure: 1 induced draft bin, 2 rotating shaft, 3 rotating drum, 4 blades, 5 connecting mechanism, 51 support, 52 adjusting seat, 53 pillar, 54 spring, 55 L-shaped groove, 56 L-shaped plate, 57 slide, 6 air inlet pipe, 7 mounting cylinder, 8 filter, 9 motor, 10 air outlet pipe, 11 bracket, 12 control switch, 13 bayonet, 14 bayonet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-3 , this embodiment provides a technical solution: a primary fan with a dust-proof structure, comprising an induced draft bin 1 and a connecting mechanism 5;

[0022] Air inlet bin 1: An air inlet pipe 6 is provided at its front end, and a mounting tube 7 is movably sleeved on the front end of the outer surface of the air inlet pipe 6, and two filter screens 8 are fixedly connected to the front end of the mounting tube 7;

[0023] Connecting mechanism 5: It includes a support 51, an adjustment seat 52, an L-shaped groove 55 and an L-shaped plate 56. The support 51 is evenly fixedly connected to the middle of the outer surface of the air inlet pipe 6. The inside of the support 51 is rotatably connected to the adjustment seat 52. The front end of the adjustment seat 52 is provided with an L-shaped plate 56. The L-shaped groove 55 is evenly arranged at the rear end of the mounting tube 7. The L-shaped plate 56 is installed in conjunction with the longitudinally adjacent L-shaped groove 55. The connecting mechanism 5 also includes a pillar 53 and a slide 57. The pillar 53 is fixedly connected to the front end of the adjustment seat 52. The slide 57 is arranged inside the L-shaped plate 56. The slide 57 is slidably connected to the longitudinally adjacent pillars 53. The connecting mechanism 5 also includes a spring 54. The spring 54 is fixedly connected between the L-shaped plate 56 and the longitudinally adjacent adjustment seat 52. The spring 54 is movable sleeve The outer surfaces of the longitudinally adjacent pillars 53 are provided with bayonet holes 13 at the rear ends of the transverse grooves of the L-shaped grooves 55. The front ends of the transverse plates of the L-shaped plates 56 are fixedly connected with clamping plates 14. The clamping plates 14 are clamped with the longitudinally adjacent bayonet holes 13. The installation cylinder 7 is sleeved to the front end of the air inlet pipe 6. Then the adjustment seat 52 is rotated forward in sequence and the L-shaped plates 56 are pulled forward at the same time. The L-shaped plates 56 are all moved forward under the guidance of the longitudinally adjacent pillars 53. At the same time, the springs 54 are elastically stretched. When the L-shaped plates 56 slide into the corresponding L-shaped grooves 55, the elastic force of the springs 54 pulls the corresponding L-shaped plates 56 to move backward under the guidance of the longitudinally adjacent pillars 53, so that the clamping plates 14 are clamped to the inside of the longitudinally adjacent bayonet holes 13, thereby realizing a quick and stable connection between the installation cylinder 7 and the air inlet pipe 6.

[0024] Wherein: a control switch 12 is provided on the left side of the induced draft bin 1, the input end of the control switch 12 is electrically connected to the external power supply, the internal rotation of the induced draft bin 1 is connected to the rotating shaft 2, the middle part of the rotating shaft 2 is fixedly connected to the rotating drum 3, the outer surface of the rotating drum 3 is fixedly connected to the evenly distributed blades 4, and the rear end of the induced draft bin 1 is provided with a motor 9, the input end of the motor 9 is electrically connected to the output end of the control switch 12, and the operation of the motor 9 is realized by the control switch 12. The rotation of the output shaft of the motor 9 drives the rotating shaft 2 to rotate, and the rotation of the rotating shaft 2 drives the rotating drum 3 to rotate, thereby driving the evenly distributed blades 4 to rotate, and the external air is filtered by the filter 8 and introduced into the furnace to provide combustion-supporting air for the furnace combustion and cool the grate at the same time;

[0025] Among them: the left end of the induced draft bin 1 is provided with an air outlet pipe 10, the left end of the air outlet pipe 10 is provided with evenly distributed connection holes, the lower end of the induced draft bin 1 is fixedly connected with a bracket 11, and the front and rear ends of the bracket 11 are provided with evenly distributed mounting holes.

[0026] The working principle of a primary fan with a dust-proof structure provided by the present invention is as follows: when working, the personnel first stably connect the internal mounting hole of the bracket 11 and the threaded hole of the working plane by installing bolts, thereby realizing the stable installation of the bracket 11 and the induced draft bin 1 and other mechanisms. After the installation is stable, the personnel sleeve the mounting cylinder 7 to the front end of the air inlet pipe 6, and then the personnel rotate the adjustment seat 52 forward in turn, and at the same time pull the L-shaped plate 56 forward. The L-shaped plates 56 are all moved forward under the guidance of the longitudinally adjacent pillars 53, and at the same time, the springs 54 are all elastically stretched. When the L-shaped plates 56 slide into the corresponding Inside the corresponding L-shaped groove 55, the elastic force of the spring 54 pulls the corresponding L-shaped plate 56 to move backward under the guidance of the longitudinally adjacent pillars 53, so that the clamping plates 14 are all clamped to the inside of the longitudinally adjacent bayonet 13, realizing a fast and stable connection between the installation cylinder 7 and the air inlet pipe 6, and then the personnel realize the operation of the motor 9 through the control switch 12. The rotation of the output shaft of the motor 9 drives the rotation of the rotating shaft 2, and the rotation of the rotating shaft 2 drives the rotation of the rotating drum 3, and then drives the evenly distributed blades 4 to rotate, and the external air is filtered through the filter 8 and introduced into the interior of the furnace to provide combustion-supporting air for the furnace combustion and cool the grate at the same time.

[0027] It is worth noting that the control switch 12 disclosed in the above embodiment is provided with a control button corresponding to the motor 9 and controlling the switching thereof.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A primary fan with a dust-proof structure, characterized in that: It comprises an induced draft bin (1) and a connecting mechanism (5); The air induction chamber (1) is provided with an air inlet pipe (6) at its front end, a mounting tube (7) is movably sleeved on the front end of the outer surface of the air inlet pipe (6), and two filter screens (8) are fixedly connected to the front end of the mounting tube (7); The connecting mechanism (5) comprises a support (51), an adjustment seat (52), an L-shaped groove (55) and an L-shaped plate (56). The support (51) is evenly fixedly connected to the middle part of the outer surface of the air inlet pipe (6). The adjustment seat (52) is rotatably connected inside the support (51). The front end of the adjustment seat (52) is provided with an L-shaped plate (56). The L-shaped grooves (55) are evenly provided at the rear end of the installation tube (7). The L-shaped plates (56) are installed in conjunction with the longitudinally adjacent L-shaped grooves (55).

2. The primary fan with a dust-proof structure according to claim 1, characterized in that: The connecting mechanism (5) further comprises pillars (53) and slide grooves (57), wherein the pillars (53) are fixedly connected to the front end of the adjustment seat (52), and the slide grooves (57) are arranged inside the L-shaped plate (56), and the slide grooves (57) are slidably connected to the longitudinally adjacent pillars (53).

3. The primary fan with a dust-proof structure according to claim 2, characterized in that: The connecting mechanism (5) further comprises a spring (54), wherein the springs (54) are fixedly connected between the L-shaped plate (56) and the longitudinally adjacent adjustment seat (52), and the springs (54) are movably sleeved on the outer surface of the longitudinally adjacent pillar (53).

4. The primary fan with a dust-proof structure according to claim 1, characterized in that: The rear ends of the transverse grooves of the L-shaped grooves (55) are all provided with bayonet holes (13), and the front ends of the transverse plates of the L-shaped plates (56) are all fixedly connected with clamping plates (14), and the clamping plates (14) are all clamped with the longitudinally adjacent bayonet holes (13).

5. The primary fan with a dust-proof structure according to claim 1, characterized in that: A control switch (12) is provided on the left side of the induced draft bin (1), and an input end of the control switch (12) is electrically connected to an external power supply.

6. The primary fan with a dust-proof structure according to claim 5, characterized in that: The interior of the induced draft bin (1) is rotatably connected to a rotating shaft (2), the middle of the rotating shaft (2) is fixedly connected to a rotating drum (3), the outer surface of the rotating drum (3) is fixedly connected to evenly distributed blades (4), and a motor (9) is provided at the rear end of the induced draft bin (1), the input end of the motor (9) being electrically connected to the output end of a control switch (12).

7. The primary fan with a dust-proof structure according to claim 1, characterized in that: The left end of the induced draft bin (1) is provided with an air outlet pipe (10), and the left end of the air outlet pipe (10) is provided with evenly distributed connection holes. The lower end of the induced draft bin (1) is fixedly connected to a bracket (11), and the front and rear ends of the bracket (11) are both provided with evenly distributed mounting holes.

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